---
title: user_msqid_ds
framework: Kernel
role: symbol
platforms: [macOS 10.6+]
path: kernel/user_msqid_ds
---

# user_msqid_ds

## Declaration

```occ
struct user_msqid_ds {
    ...
};
```

## Topics

### Instance Properties

- [msg_cbytes](kernel/user_msqid_ds/1529483-msg_cbytes.md)
- [msg_ctime](kernel/user_msqid_ds/1529590-msg_ctime.md)
- [msg_first](kernel/user_msqid_ds/1529543-msg_first.md)
- [msg_last](kernel/user_msqid_ds/1529529-msg_last.md)
- [msg_lrpid](kernel/user_msqid_ds/1529589-msg_lrpid.md)
- [msg_lspid](kernel/user_msqid_ds/1529598-msg_lspid.md)
- [msg_pad1](kernel/user_msqid_ds/1529533-msg_pad1.md)
- [msg_pad2](kernel/user_msqid_ds/1529611-msg_pad2.md)
- [msg_pad3](kernel/user_msqid_ds/1529568-msg_pad3.md)
- [msg_pad4](kernel/user_msqid_ds/1529567-msg_pad4.md)
- [msg_perm](kernel/user_msqid_ds/1529518-msg_perm.md)
- [msg_qbytes](kernel/user_msqid_ds/1529605-msg_qbytes.md)
- [msg_qnum](kernel/user_msqid_ds/1529525-msg_qnum.md)
- [msg_rtime](kernel/user_msqid_ds/1529561-msg_rtime.md)
- [msg_stime](kernel/user_msqid_ds/1529513-msg_stime.md)